Improvement in saw-buckles



UNITED STATES PATENT OFFICE CHARLES W. HUBBARD, OF PITTSBURG,PENNSYLVANIA.

IMPROVEMENT IN SAW-BUCKLES.

Specification forming part of Letters Patent No. 141,225 dated July 29,1873; application filed December 2, 1872.

To all whom it may concern:

Be it known that I, CHARLEs W. HUBBARD, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, have invented a new and usefulImprovement in Buckles for Saw- Mills; and I do hereby declare thefollowing to be a full, clear, and exact description thereof, referencebeing bad to the accompanying drawing making part of this specification,in which Figure 1 represents such a blank as finished, and whichconstitutes one half of the buckle. Fig. 2 is a sectional view ofFig. 1. Fig. 3 is a perspective view of the buckle complete and its hookor hanger. Fig. 4is a sectional view of the buckle, part of Fig. 3; andFig. 5, by a sectional view, illustrates the construction of the oldsaw-buckle, to which my present improvement relates.

Like letters of reference indicate like parts of each.

My invention relates to an improvement in what is commonly known as theCrosby sawbuckle, and also in the buckle itself.

This buckle, as patented to Pearson Crosby October 4, 1859, is, so faras relates to the present invention, substantially shown in Fig. 5, inwhich a to represent the two halves of the buckle; a, the saw; and a thehook or hanger.

It has been found by experience that the hook a frequently breaks; as aconsequence some difficulty has been experienced in introducing it intogeneral extensive use; also, the buckle as made by Crosby was of castmetal, and was liable to break. By my improvement I obviate both thedefects.

To enable others skilled in the art to make and use my improvement, Iwill describe its construction and mode of operation.

The buckle-blanks are cut from bars rolled to a suitable width andthickness, and with a rib along the edge of one face, such as whenproperly planed will give the hook, c, desired. The bars are cut tosuitable lengths to form the blanks, each blank so cut off formingonehalf the buckle proper. By suitable means the body D of the blank isthen bent, as at d, so that when two blanks are put together and weldedor riveted, as in Fig. 3, the inwardlybent ends shall come face to faceand the lower ends be in proper position for receiving the end of thesaw and its straps. An eye, 0, is punched or drilled in each blank,through which the pin is passed by which to attach the buckle to thehook or hanger f. This hanger is bifurcated at its lower end, and onearm of the bifurcation passes over each outer face of the upper end ofthe buckle, as shown and as each arm f of the bifurcation may be 1 madeequally as strong as the single hanger, shown in Fig. 5, I am enabled touse the Crosby buckle in mills where the strain on the hangers is sogreat as to render the use of the old buckle with the single hook orhanger impracticable.

I hereby disclaim the construction shown in Fig. 5.

What I claim as my invention, and desire to secure by Letters Patent, asan improvement on the Crosby buckle, is-

A saw buckle and hanger composed of a bifurcated hanger, f, and blanks DD, bent as at d, so that their upper ends may come face to face, whileroom is left between their opposite hook-ends for the insertion of thesaw and straps, substantially as set forth.

In testimony whereof I, the said CHARLES W. HUBBARD, have hereunto setmy hand.

CHARLES W. HUBBARD.

Witnesses:

A. S. N IOHOLSON, G. H. CHRIsTY.

